AP Chemistry Lab Manual

Step Notes Place 1-2 mL of solution to be tested in a small test tube. Add 1 mL of 2 M ammonium chloride solution to the sample in the test tube and stir. Add 6 M aqueous ammonia to the sample dropwise until the solution is just barely basic (remove a drop of the solution with a stirring rod and touch the drop to a strip of pH test paper ... ................
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